CN202645840U - Wind wheel blade lightning-prevention device of wind generating unit - Google Patents
Wind wheel blade lightning-prevention device of wind generating unit Download PDFInfo
- Publication number
- CN202645840U CN202645840U CN201220221813XU CN201220221813U CN202645840U CN 202645840 U CN202645840 U CN 202645840U CN 201220221813X U CN201220221813X U CN 201220221813XU CN 201220221813 U CN201220221813 U CN 201220221813U CN 202645840 U CN202645840 U CN 202645840U
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- Prior art keywords
- wind wheel
- wheel blade
- wind
- blade
- protection device
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- Expired - Lifetime
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The utility model discloses a wind blade lightning-prevention device of a wind generating unit, wherein a main girder of a wind wheel blade is made of a carbon fiber reinforced composite material, a lightning arrester is pre-embedded into a wind wheel blade shell of a non-main-girder area, and the lightning arrester is grounded by a lead wire positioned in a cavity of the wind wheel blade; and in addition, a conductive shunting band is fixed on the outer surface of the wind wheel blade and is connected with the lightning arrester by a nut. According to the utility model, the conductive shunting band is arranged on the outer surface of the wind wheel blade, the area of a protection zone of the wind wheel blade lightning-prevention device can be increased, and the lightning arrest effect is good; and the wind blade lightning-prevention device is suitable for a wind generating unit which adopts the carbon fiber reinforced composite material as a main girder of the wind wheel blade.
Description
Technical field
The utility model relates to wind power generating set lighting protection device field, particularly, relates to a kind of fan blade of wind generating set lighting protection device.
Background technique
Along with the development of modern wind generation technology, the single-machine capacity of wind-powered electricity generation unit is increasing, and tower cylinder height and rotor diameter constantly increase, and has increased the danger that wind wheel blade is struck by lightning, especially in southwest China thunderstorm prone areas.Adopt at blade tip and the blade immovable point metal connecting flash-point mode by wire ground connection of arranging of traditional wind wheel blade lightning-protection system prevents that blade is struck by lightning more.This traditional Lightning Protection has the sudden strain of a muscle of connecing weak effect, and anti-lightning strike protection is little to get shortcoming, but substantially can satisfy the lightning protection requirement of general full glass fibre reinforced composion wind wheel blade.
Large MW level (3MW and more than) wind power generating set adopts carbon fibre reinforced composite to make the wind wheel blade girder more, the electric conductivity of carbon fibre reinforced composite obviously is better than glass fibre reinforced composion relatively, and traditional lighting protection device can not satisfy the lightning protection requirement of this kind blade.
The model utility content
For the problems referred to above; the fan blade of wind generating set lighting protection device that the utility model provides a kind of girder to adopt carbon fibre reinforced composite to make; purpose is to improve the protected zone area of blade lightning protection device, prevents from causing the blade lightning damage by the good electric conductivity of carbon fibre reinforced composite.
To achieve these goals, the utility model adopts following technological scheme:
A kind of fan blade of wind generating set lighting protection device, the girder of described wind wheel blade adopts carbon fibre reinforced composite, is embedded with arrester in the wind wheel blade housing in non-girder zone, and arrester is by being arranged in the wire ground connection of wind wheel blade inner chamber; And the outer surface at described wind wheel blade is fixed with conduction shunting band, and conduction shunting band is connected with arrester by nut.
Further, described conduction shunting band is followed successively by by upper surface to lower surface: conductive aluminum foil layer, epoxy resin layer and unsaturated polyester adhesive tape layer, and lower surface and wind wheel blade outer surface are bonding.
Further, described conduction shunting band is across the girder of wind wheel blade.
Further, described arrester is arranged in the conduction shunting with the wind wheel blade housing of an end, and is connected with an end of conduction shunting band.
Further, the trailing edge of the close wind wheel blade of arrester that is connected with an end of described and conduction shunting.
Further, be provided with a plurality of arresters in every side body of described wind wheel blade, bilateral symmetry distributes, and described conduction shunting is with a plurality of, and is corresponding one by one with a plurality of arresters, and the conduction shunting that is positioned at two side same positions of wind wheel blade is with and is not overlapped.
Further, the described a plurality of conduction shunting bands that are positioned at the every side body outer surface of wind wheel blade axially evenly arrange side by side along wind wheel blade.
Further, described wire is by wheel hub ground connection.
Further, described wire is connected ground connection by the blade root metal flange with wheel hub.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is by arranging conduction shunting band at the wind wheel blade outer surface; can improve the protected zone area of wind wheel blade lighting protection device; connect and dodge effectively, be applicable to adopt carbon fibre reinforced composite as the large MW level of wind wheel blade girder (3MW and more than) wind power generating set.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the wind generating set structure schematic diagram;
Fig. 2 is the wind wheel blade structural representation with lighting protection device;
Fig. 3 is the A-A sectional view among Fig. 2;
Fig. 4 is the partial enlarged drawing at the B position among Fig. 3;
Fig. 5 is the basic structure schematic diagram of conduction shunting band.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Fan blade of wind generating set lighting protection device of the present utility model, the wind wheel blade 1 that mainly is applicable to wind power generating set as shown in Figure 1 adopts carbon fibre reinforced composite as the situation of girder.
Shown in Fig. 2,3,4,5, fan blade of wind generating set lighting protection device of the present utility model, be embedded with arrester 2 in wind wheel blade 1 housing in non-girder 4 zones, arrester 2 is connected with the blade root metal flange by the wire 5 that is arranged in wind wheel blade 1 inner chamber, by wheel hub ground connection; And be fixed with conduction shunting on the outer surface of wind wheel blade 1 and be with 3, the conduction shunting is with 3 to be followed successively by by upper surface to lower surface: conductive aluminum foil layer 7, epoxy resin layer 8 and unsaturated polyester adhesive tape layer 9, and lower surface and wind wheel blade 1 outer surface are bonding.Conduction is shunted with 3 girders 4 across wind wheel blade 1, and arrester 2 is arranged in the conduction shunting with wind wheel blade 1 housing of 3 one ends, and near the trailing edge position of wind wheel blade 1, and arrester 2 is fixedly connected with by nut 6 with the end that conduction is shunted with 3.
In the above-described embodiments, all can be provided with a plurality of arresters 2 in every side body of wind wheel blade 1, bilateral symmetry distributes, the conduction shunting be with 3 have a plurality of, corresponding one by one with a plurality of arresters 2, and the conduction shunting that is positioned at 1 two side same positions of wind wheel blade is with 3 not overlap.The a plurality of conduction shuntings that are positioned at wind wheel blade 1 every side body outer surface are with 3 can axially evenly arrange side by side along wind wheel blade 1.
The installation method of above-mentioned fan blade of wind generating set lighting protection device comprises the steps:
(1) arrester is embedded in advance in the wind wheel blade housing in non-girder zone, and one-body molded with the wind wheel blade housing;
(2) before the wind wheel blade matched moulds is bonding, by the wire that is arranged in the wind wheel blade inner chamber arrester is connected with the blade root metal flange, by wheel hub ground connection;
(3) after the wind wheel blade molding, spray paint before, the shunting band of will conducting electricity sticks on the wind wheel blade outer surface, sticking area must be across the girder of carbon fibre reinforced composite, and the conduction shunting that is positioned at two side same positions of wind wheel blade must not be with and overlapped;
(4) will conduct electricity shunting band by nut fixes with arrester;
(5) lighting protection device installation.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technological scheme that previous embodiment is put down in writing, and perhaps part technical characteristics wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. fan blade of wind generating set lighting protection device, it is characterized in that, the girder of described wind wheel blade adopts carbon fibre reinforced composite, is embedded with arrester in the wind wheel blade housing in non-girder zone, and arrester is by being arranged in the wire ground connection of wind wheel blade inner chamber; And the outer surface at described wind wheel blade is fixed with conduction shunting band, and conduction shunting band is connected with arrester by nut.
2. fan blade of wind generating set lighting protection device according to claim 1, it is characterized in that, described conduction shunting band is followed successively by by upper surface to lower surface: conductive aluminum foil layer, epoxy resin layer and unsaturated polyester adhesive tape layer, and lower surface and wind wheel blade outer surface are bonding.
3. fan blade of wind generating set lighting protection device according to claim 1 and 2 is characterized in that, described conduction shunting band is across the girder of wind wheel blade.
4. fan blade of wind generating set lighting protection device according to claim 3 is characterized in that, described arrester is arranged in the conduction shunting with the wind wheel blade housing of an end, and is connected with an end of conduction shunting band.
5. fan blade of wind generating set lighting protection device according to claim 4 is characterized in that, the trailing edge of the close wind wheel blade of arrester that described and conduction shunting are connected with an end.
6. fan blade of wind generating set lighting protection device according to claim 3, it is characterized in that, be provided with a plurality of arresters in every side body of described wind wheel blade, bilateral symmetry distributes, described conduction shunting is with a plurality of, corresponding one by one with a plurality of arresters, and the conduction shunting band that is positioned at two side same positions of wind wheel blade does not overlap.
7. fan blade of wind generating set lighting protection device according to claim 6 is characterized in that, the described a plurality of conduction shunting bands that are positioned at the every side body outer surface of wind wheel blade axially evenly arrange side by side along wind wheel blade.
8. fan blade of wind generating set lighting protection device according to claim 1 is characterized in that, described wire is by wheel hub ground connection.
9. fan blade of wind generating set lighting protection device according to claim 8 is characterized in that, described wire is connected ground connection by the blade root metal flange with wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220221813XU CN202645840U (en) | 2012-05-16 | 2012-05-16 | Wind wheel blade lightning-prevention device of wind generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220221813XU CN202645840U (en) | 2012-05-16 | 2012-05-16 | Wind wheel blade lightning-prevention device of wind generating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645840U true CN202645840U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220221813XU Expired - Lifetime CN202645840U (en) | 2012-05-16 | 2012-05-16 | Wind wheel blade lightning-prevention device of wind generating unit |
Country Status (1)
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| CN (1) | CN202645840U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661240A (en) * | 2012-05-16 | 2012-09-12 | 国电联合动力技术有限公司 | Wind wheel vane anti-lightning device for wind generating set and mounting method thereof |
| CN103016279A (en) * | 2013-01-17 | 2013-04-03 | 平阴乐深强压铸有限责任公司 | Lightning arrester of blade of wind-driven generator |
| USD803163S1 (en) | 2016-05-13 | 2017-11-21 | Erico International Corporation | Tip receptor mount for lightning protection systems |
| CN107956656A (en) * | 2017-12-29 | 2018-04-24 | 中国电力科学研究院有限公司 | A kind of wind power generation unit blade lightning protection connects sudden strain of a muscle system |
| US10344743B2 (en) | 2016-05-13 | 2019-07-09 | Erico International Corporation | Lightning protection system and method for wind turbine blades |
| CN110848096A (en) * | 2019-12-04 | 2020-02-28 | 北京金风科创风电设备有限公司 | Lightning protection lightning receiving device, fan blade and wind generating set |
| CN112796935A (en) * | 2021-03-25 | 2021-05-14 | 中材科技风电叶片股份有限公司 | Wind power blade |
-
2012
- 2012-05-16 CN CN201220221813XU patent/CN202645840U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661240A (en) * | 2012-05-16 | 2012-09-12 | 国电联合动力技术有限公司 | Wind wheel vane anti-lightning device for wind generating set and mounting method thereof |
| CN103016279A (en) * | 2013-01-17 | 2013-04-03 | 平阴乐深强压铸有限责任公司 | Lightning arrester of blade of wind-driven generator |
| USD803163S1 (en) | 2016-05-13 | 2017-11-21 | Erico International Corporation | Tip receptor mount for lightning protection systems |
| US10344743B2 (en) | 2016-05-13 | 2019-07-09 | Erico International Corporation | Lightning protection system and method for wind turbine blades |
| USD881136S1 (en) | 2016-05-13 | 2020-04-14 | Erico International Corporation | Tip receptor mount for lightning protection systems |
| US11078889B2 (en) | 2016-05-13 | 2021-08-03 | Erico International Corporation | Lightning protection system and method for wind turbine blades |
| CN107956656A (en) * | 2017-12-29 | 2018-04-24 | 中国电力科学研究院有限公司 | A kind of wind power generation unit blade lightning protection connects sudden strain of a muscle system |
| CN107956656B (en) * | 2017-12-29 | 2020-08-07 | 中国电力科学研究院有限公司 | Lightning protection lightning receiving system for blades of wind turbine generator |
| CN110848096A (en) * | 2019-12-04 | 2020-02-28 | 北京金风科创风电设备有限公司 | Lightning protection lightning receiving device, fan blade and wind generating set |
| CN112796935A (en) * | 2021-03-25 | 2021-05-14 | 中材科技风电叶片股份有限公司 | Wind power blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130701 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130701 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: Guodian United Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |